PreAP Due Wed, Feb 7, 2008

Read ALL of Chapter 12

Do these problems (they are all pretty fast): 1,3,4,5,8,10,11,12,13,14,16,18, 24,25,27,28,31,33,35,36,37,38,40,41,42,43,44

Also this question: What quantity of a wave stays the same when a wave moves between different mediums. (From the video.)